JP2569869Y2 - Painted foam resin molded product - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a painted foamed resin molded article.

[Conventional technology]

BACKGROUND ART Conventionally, there are 1) a method of attaching a printing sheet to the surface, and 2) a method of performing silk screen printing directly on the surface, as a method of painting a surface of a foamed resin molded product.

However, the method of attaching the printing sheet has difficulty in integrating the foamed resin molded product and the printing sheet, and the direct printing by silk screen printing can produce elaborate paintings because the surface of the foam is rough. There is no problem.

[Problems to be solved by the invention]

Therefore, a technical problem to be solved by the present invention is to provide a painted foamed resin molded article having a structure capable of forming an elaborate painting on the surface of the foamed resin molded article.

[Means, actions, and effects for solving the problem]

In order to solve the above technical problem, according to the present invention, there is provided a painted foamed resin molded product having the following configuration.

That is, this painted foamed resin molded product is a painted sheet having a printing layer and a heat bonding layer inside a transparent film,
The foamed resin molded product to be finally manufactured is flat-punched with the developed dimension along the painted part, and the painted sheet is inserted along the cavity of the mold and bonded to the surface of the foamed resin body by insert foaming It is characterized by doing.

Representative examples of the foamed resin body include polystyrene and polyurethane. Further, examples of the heat bonding layer include polystyrene and polyurethane, which are the same material as the foamed resin body.

In the decorating foam resin molded article of the above-described configuration, for using the decorating sheet, pre any sophisticated printing can also be applied to the sheet. That is, photographic multicolor gravure printing can also be performed. In addition, since the painting sheet is integrated with the foamed resin body by insert foam molding, the production is easy, and therefore the production cost is low, and the painting sheet of the completed molded product is completely integrated with the foamed resin body. There is an advantage that. Further, this painting sheet has a function as a reinforcing material, and can strengthen a molded article.

〔Example〕

Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS.

FIG. 2 shows an enlarged cross section of a main part of the painted foamed resin molded product. In the figure, 2 is a foamed resin body, and 1 is a painting sheet adhered to the surface of the foamed resin body 2. The painting sheet 1 is composed of a transparent film 1a, a printing layer 1b, and a heat bonding layer 1c in order from the top.

As the foamed limb 2, polystyrene or polyurethane is used.

On the other hand, the painting sheet 1 is a laminate of the polyester layer (1a), the printing layer 1b, and the polystyrene layer (1c), or
Stretched polystyrene (1a), printed layer 1b and laminate of modified ethylene-vinyl acetate copolymer having thermal adhesion to polystyrene, or polyester layer (1a), printed layer 1b, paper layer and polystyrene layer ( It is composed of the laminate of 1c).

FIG. 1 shows a molding apparatus for the painted foamed resin molded article shown in FIG. In the figure, 11 is a female type and 12 is a male type. In the cavity 11a of the female mold 11, a painting sheet 1 which has been flattened out in advance and has a developed dimension along the painting portion of a foamed resin molded product to be finally manufactured is inserted. Next, the male mold 12 is moved toward the female mold 11, and the core 12a is positioned in the cavity 11a at a predetermined position indicated by a virtual line. Next, a bead-like foamed resin body is filled into the cavity by a filling device 10 provided in the male mold 12 and heated by heating means (not shown) mounted in the mold to form the cavity 11.
The foamed resin body in a is foamed, and the painting sheet 1 is thermally bonded to the foamed resin body. This allows
It is possible to obtain a molded article to which the decorating sheet 1 is securely bonded.

[Brief description of the drawings]

BRIEF DESCRIPTION OF THE DRAWINGS The drawings show an embodiment of the present invention, FIG. 1 is a sectional view of a molding apparatus showing a molding method of a painted foamed resin molded article, and FIG. 2 is an enlarged sectional view of a main part of the molded article. 1 ... painting sheet, 1a ... transparent film, 1b ...
・ Printing layer, 1c ・ ・ ・ Heat bonding layer, 2 ・ ・ ・ Foam resin, 10 ・ ・ ・ Filler, 11 ・ ・ ・ Female, 11a ・ ・ ・ Cavity, 12 ・ ・ ・ Male, 12a ・ ・·core.

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI B29K 105: 04 B29L 9:00

Claims (1)

(57) [Scope of request for utility model registration] 1. A painting sheet having a printing layer and a heat-bonding layer inside a transparent film is flat-punched in a development dimension along a painting portion of a foamed resin molded article to be finally manufactured, and said painting is performed. A painted foamed resin molded product characterized in that a sheet is inserted along a cavity of a mold and bonded to the surface of the foamed resin body by insert foam molding.